Hello,
Do you have any other printers installed on the system?
Also have you followed up on the exact steps you need to take to complete the re-installation process?
We tried several times to reinstall the printer and every time it was completed successfully.
Thank you.

I had the same problem on Windows 7. I had a previous version of doPdf installed. After I unistalled and re-installed, the printer appeared and better yet it worked!
The reason I upgraded was that for some unknown (and unknowable) reason, the old version stopped writing the pdf to disk. All the motions went through but I could find the file anywhere on the filesystem (I thought maybe I finger checked it ).
AS of this moment things are working.